mirror of
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f83707dc6d
Found by running the checkpatch.pl Linux script to enforce coding style. Reviewed-by: Neil Horman <nhorman@openssl.org> Reviewed-by: David von Oheimb <david.von.oheimb@siemens.com> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/22097)
2498 lines
71 KiB
C
2498 lines
71 KiB
C
/*
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* Copyright 1995-2024 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*
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* DSA low level APIs are deprecated for public use, but still ok for
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* internal use.
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*/
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#include "internal/deprecated.h"
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#include <assert.h>
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#include <stdio.h>
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#include "internal/cryptlib.h"
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#include "internal/refcount.h"
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#include "internal/namemap.h"
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#include <openssl/bn.h>
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#include <openssl/err.h>
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#include <openssl/objects.h>
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#include <openssl/evp.h>
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#include <openssl/rsa.h>
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#include <openssl/dsa.h>
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#include <openssl/dh.h>
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#include <openssl/ec.h>
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#include <openssl/cmac.h>
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#ifndef FIPS_MODULE
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# include <openssl/engine.h>
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#endif
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#include <openssl/params.h>
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#include <openssl/param_build.h>
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#include <openssl/encoder.h>
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#include <openssl/core_names.h>
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#include "internal/numbers.h" /* includes SIZE_MAX */
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#include "internal/ffc.h"
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#include "crypto/evp.h"
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#include "crypto/dh.h"
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#include "crypto/dsa.h"
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#include "crypto/ec.h"
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#include "crypto/ecx.h"
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#include "crypto/rsa.h"
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#ifndef FIPS_MODULE
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# include "crypto/asn1.h"
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# include "crypto/x509.h"
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#endif
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#include "internal/provider.h"
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#include "evp_local.h"
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static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str,
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int len, EVP_KEYMGMT *keymgmt);
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static void evp_pkey_free_it(EVP_PKEY *key);
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#ifndef FIPS_MODULE
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/* The type of parameters selected in key parameter functions */
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# define SELECT_PARAMETERS OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS
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int EVP_PKEY_get_bits(const EVP_PKEY *pkey)
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{
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int size = 0;
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if (pkey != NULL) {
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size = pkey->cache.bits;
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if (pkey->ameth != NULL && pkey->ameth->pkey_bits != NULL)
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size = pkey->ameth->pkey_bits(pkey);
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}
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if (size <= 0) {
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ERR_raise(ERR_LIB_EVP, EVP_R_UNKNOWN_BITS);
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return 0;
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}
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return size;
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}
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int EVP_PKEY_get_security_bits(const EVP_PKEY *pkey)
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{
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int size = 0;
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if (pkey != NULL) {
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size = pkey->cache.security_bits;
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if (pkey->ameth != NULL && pkey->ameth->pkey_security_bits != NULL)
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size = pkey->ameth->pkey_security_bits(pkey);
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}
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if (size <= 0) {
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ERR_raise(ERR_LIB_EVP, EVP_R_UNKNOWN_SECURITY_BITS);
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return 0;
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}
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return size;
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}
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int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
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{
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# ifndef OPENSSL_NO_DSA
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if (pkey->type == EVP_PKEY_DSA) {
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int ret = pkey->save_parameters;
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if (mode >= 0)
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pkey->save_parameters = mode;
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return ret;
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}
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# endif
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# ifndef OPENSSL_NO_EC
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if (pkey->type == EVP_PKEY_EC) {
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int ret = pkey->save_parameters;
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if (mode >= 0)
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pkey->save_parameters = mode;
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return ret;
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}
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# endif
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return 0;
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}
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int EVP_PKEY_set_ex_data(EVP_PKEY *key, int idx, void *arg)
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{
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return CRYPTO_set_ex_data(&key->ex_data, idx, arg);
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}
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void *EVP_PKEY_get_ex_data(const EVP_PKEY *key, int idx)
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{
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return CRYPTO_get_ex_data(&key->ex_data, idx);
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}
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int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
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{
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/*
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* Clean up legacy stuff from this function when legacy support is gone.
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*/
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EVP_PKEY *downgraded_from = NULL;
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int ok = 0;
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/*
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* If |to| is a legacy key and |from| isn't, we must make a downgraded
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* copy of |from|. If that fails, this function fails.
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*/
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if (evp_pkey_is_legacy(to) && evp_pkey_is_provided(from)) {
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if (!evp_pkey_copy_downgraded(&downgraded_from, from))
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goto end;
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from = downgraded_from;
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}
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/*
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* Make sure |to| is typed. Content is less important at this early
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* stage.
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*
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* 1. If |to| is untyped, assign |from|'s key type to it.
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* 2. If |to| contains a legacy key, compare its |type| to |from|'s.
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* (|from| was already downgraded above)
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*
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* If |to| is a provided key, there's nothing more to do here, functions
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* like evp_keymgmt_util_copy() and evp_pkey_export_to_provider() called
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* further down help us find out if they are the same or not.
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*/
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if (evp_pkey_is_blank(to)) {
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if (evp_pkey_is_legacy(from)) {
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if (EVP_PKEY_set_type(to, from->type) == 0)
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goto end;
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} else {
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if (EVP_PKEY_set_type_by_keymgmt(to, from->keymgmt) == 0)
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goto end;
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}
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} else if (evp_pkey_is_legacy(to)) {
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if (to->type != from->type) {
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ERR_raise(ERR_LIB_EVP, EVP_R_DIFFERENT_KEY_TYPES);
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goto end;
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}
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}
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if (EVP_PKEY_missing_parameters(from)) {
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ERR_raise(ERR_LIB_EVP, EVP_R_MISSING_PARAMETERS);
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goto end;
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}
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if (!EVP_PKEY_missing_parameters(to)) {
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if (EVP_PKEY_parameters_eq(to, from) == 1)
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ok = 1;
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else
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ERR_raise(ERR_LIB_EVP, EVP_R_DIFFERENT_PARAMETERS);
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goto end;
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}
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/* For purely provided keys, we just call the keymgmt utility */
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if (to->keymgmt != NULL && from->keymgmt != NULL) {
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ok = evp_keymgmt_util_copy(to, (EVP_PKEY *)from, SELECT_PARAMETERS);
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goto end;
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}
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/*
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* If |to| is provided, we know that |from| is legacy at this point.
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* Try exporting |from| to |to|'s keymgmt, then use evp_keymgmt_dup()
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* to copy the appropriate data to |to|'s keydata.
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* We cannot override existing data so do it only if there is no keydata
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* in |to| yet.
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*/
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if (to->keymgmt != NULL && to->keydata == NULL) {
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EVP_KEYMGMT *to_keymgmt = to->keymgmt;
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void *from_keydata =
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evp_pkey_export_to_provider((EVP_PKEY *)from, NULL, &to_keymgmt,
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NULL);
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/*
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* If we get a NULL, it could be an internal error, or it could be
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* that there's a key mismatch. We're pretending the latter...
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*/
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if (from_keydata == NULL)
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ERR_raise(ERR_LIB_EVP, EVP_R_DIFFERENT_KEY_TYPES);
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else
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ok = (to->keydata = evp_keymgmt_dup(to->keymgmt,
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from_keydata,
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SELECT_PARAMETERS)) != NULL;
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goto end;
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}
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/* Both keys are legacy */
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if (from->ameth != NULL && from->ameth->param_copy != NULL)
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ok = from->ameth->param_copy(to, from);
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end:
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EVP_PKEY_free(downgraded_from);
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return ok;
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}
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int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey)
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{
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if (pkey != NULL) {
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if (pkey->keymgmt != NULL)
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return !evp_keymgmt_util_has((EVP_PKEY *)pkey, SELECT_PARAMETERS);
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else if (pkey->ameth != NULL && pkey->ameth->param_missing != NULL)
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return pkey->ameth->param_missing(pkey);
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}
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return 0;
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}
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/*
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* This function is called for any mixture of keys except pure legacy pair.
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* When legacy keys are gone, we replace a call to this functions with
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* a call to evp_keymgmt_util_match().
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*/
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static int evp_pkey_cmp_any(const EVP_PKEY *a, const EVP_PKEY *b,
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int selection)
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{
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EVP_KEYMGMT *keymgmt1 = NULL, *keymgmt2 = NULL;
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void *keydata1 = NULL, *keydata2 = NULL, *tmp_keydata = NULL;
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/* If none of them are provided, this function shouldn't have been called */
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if (!ossl_assert(evp_pkey_is_provided(a) || evp_pkey_is_provided(b)))
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return -2;
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/* For purely provided keys, we just call the keymgmt utility */
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if (evp_pkey_is_provided(a) && evp_pkey_is_provided(b))
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return evp_keymgmt_util_match((EVP_PKEY *)a, (EVP_PKEY *)b, selection);
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/*
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* At this point, one of them is provided, the other not. This allows
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* us to compare types using legacy NIDs.
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*/
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if (evp_pkey_is_legacy(a)
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&& !EVP_KEYMGMT_is_a(b->keymgmt, OBJ_nid2sn(a->type)))
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return -1; /* not the same key type */
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if (evp_pkey_is_legacy(b)
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&& !EVP_KEYMGMT_is_a(a->keymgmt, OBJ_nid2sn(b->type)))
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return -1; /* not the same key type */
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/*
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* We've determined that they both are the same keytype, so the next
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* step is to do a bit of cross export to ensure we have keydata for
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* both keys in the same keymgmt.
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*/
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keymgmt1 = a->keymgmt;
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keydata1 = a->keydata;
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keymgmt2 = b->keymgmt;
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keydata2 = b->keydata;
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if (keymgmt2 != NULL && keymgmt2->match != NULL) {
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tmp_keydata =
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evp_pkey_export_to_provider((EVP_PKEY *)a, NULL, &keymgmt2, NULL);
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if (tmp_keydata != NULL) {
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keymgmt1 = keymgmt2;
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keydata1 = tmp_keydata;
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}
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}
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if (tmp_keydata == NULL && keymgmt1 != NULL && keymgmt1->match != NULL) {
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tmp_keydata =
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evp_pkey_export_to_provider((EVP_PKEY *)b, NULL, &keymgmt1, NULL);
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if (tmp_keydata != NULL) {
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keymgmt2 = keymgmt1;
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keydata2 = tmp_keydata;
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}
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}
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/* If we still don't have matching keymgmt implementations, we give up */
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if (keymgmt1 != keymgmt2)
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return -2;
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/* If the keymgmt implementations are NULL, the export failed */
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if (keymgmt1 == NULL)
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return -2;
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return evp_keymgmt_match(keymgmt1, keydata1, keydata2, selection);
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}
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# ifndef OPENSSL_NO_DEPRECATED_3_0
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int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
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{
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return EVP_PKEY_parameters_eq(a, b);
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}
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#endif
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int EVP_PKEY_parameters_eq(const EVP_PKEY *a, const EVP_PKEY *b)
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{
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/*
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* This will just call evp_keymgmt_util_match when legacy support
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* is gone.
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*/
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if (a->keymgmt != NULL || b->keymgmt != NULL)
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return evp_pkey_cmp_any(a, b, SELECT_PARAMETERS);
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/* All legacy keys */
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if (a->type != b->type)
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return -1;
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if (a->ameth != NULL && a->ameth->param_cmp != NULL)
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return a->ameth->param_cmp(a, b);
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return -2;
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}
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# ifndef OPENSSL_NO_DEPRECATED_3_0
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int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
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{
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return EVP_PKEY_eq(a, b);
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}
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#endif
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int EVP_PKEY_eq(const EVP_PKEY *a, const EVP_PKEY *b)
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{
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/*
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* This will just call evp_keymgmt_util_match when legacy support
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* is gone.
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*/
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/* Trivial shortcuts */
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if (a == b)
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return 1;
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if (a == NULL || b == NULL)
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return 0;
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if (a->keymgmt != NULL || b->keymgmt != NULL) {
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int selection = SELECT_PARAMETERS;
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if (evp_keymgmt_util_has((EVP_PKEY *)a, OSSL_KEYMGMT_SELECT_PUBLIC_KEY)
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&& evp_keymgmt_util_has((EVP_PKEY *)b, OSSL_KEYMGMT_SELECT_PUBLIC_KEY))
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selection |= OSSL_KEYMGMT_SELECT_PUBLIC_KEY;
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else
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selection |= OSSL_KEYMGMT_SELECT_KEYPAIR;
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return evp_pkey_cmp_any(a, b, selection);
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}
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/* All legacy keys */
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if (a->type != b->type)
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return -1;
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if (a->ameth != NULL) {
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int ret;
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/* Compare parameters if the algorithm has them */
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if (a->ameth->param_cmp != NULL) {
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ret = a->ameth->param_cmp(a, b);
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if (ret <= 0)
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return ret;
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}
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if (a->ameth->pub_cmp != NULL)
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return a->ameth->pub_cmp(a, b);
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}
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return -2;
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}
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|
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static EVP_PKEY *new_raw_key_int(OSSL_LIB_CTX *libctx,
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const char *strtype,
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const char *propq,
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int nidtype,
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ENGINE *e,
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const unsigned char *key,
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size_t len,
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int key_is_priv)
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{
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EVP_PKEY *pkey = NULL;
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EVP_PKEY_CTX *ctx = NULL;
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const EVP_PKEY_ASN1_METHOD *ameth = NULL;
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int result = 0;
|
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|
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# ifndef OPENSSL_NO_ENGINE
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/* Check if there is an Engine for this type */
|
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if (e == NULL) {
|
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ENGINE *tmpe = NULL;
|
|
|
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if (strtype != NULL)
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ameth = EVP_PKEY_asn1_find_str(&tmpe, strtype, -1);
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else if (nidtype != EVP_PKEY_NONE)
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ameth = EVP_PKEY_asn1_find(&tmpe, nidtype);
|
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|
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/* If tmpe is NULL then no engine is claiming to support this type */
|
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if (tmpe == NULL)
|
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ameth = NULL;
|
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|
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ENGINE_finish(tmpe);
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}
|
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# endif
|
|
|
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if (e == NULL && ameth == NULL) {
|
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/*
|
|
* No engine is claiming to support this type, so lets see if we have
|
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* a provider.
|
|
*/
|
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ctx = EVP_PKEY_CTX_new_from_name(libctx,
|
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strtype != NULL ? strtype
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: OBJ_nid2sn(nidtype),
|
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propq);
|
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if (ctx == NULL)
|
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goto err;
|
|
/* May fail if no provider available */
|
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ERR_set_mark();
|
|
if (EVP_PKEY_fromdata_init(ctx) == 1) {
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OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
|
|
|
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ERR_clear_last_mark();
|
|
params[0] = OSSL_PARAM_construct_octet_string(
|
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key_is_priv ? OSSL_PKEY_PARAM_PRIV_KEY
|
|
: OSSL_PKEY_PARAM_PUB_KEY,
|
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(void *)key, len);
|
|
|
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if (EVP_PKEY_fromdata(ctx, &pkey, EVP_PKEY_KEYPAIR, params) != 1) {
|
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ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED);
|
|
goto err;
|
|
}
|
|
|
|
EVP_PKEY_CTX_free(ctx);
|
|
|
|
return pkey;
|
|
}
|
|
ERR_pop_to_mark();
|
|
/* else not supported so fallback to legacy */
|
|
}
|
|
|
|
/* Legacy code path */
|
|
|
|
pkey = EVP_PKEY_new();
|
|
if (pkey == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, ERR_R_EVP_LIB);
|
|
goto err;
|
|
}
|
|
|
|
if (!pkey_set_type(pkey, e, nidtype, strtype, -1, NULL)) {
|
|
/* ERR_raise(ERR_LIB_EVP, ...) already called */
|
|
goto err;
|
|
}
|
|
|
|
if (!ossl_assert(pkey->ameth != NULL))
|
|
goto err;
|
|
|
|
if (key_is_priv) {
|
|
if (pkey->ameth->set_priv_key == NULL) {
|
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ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
goto err;
|
|
}
|
|
|
|
if (!pkey->ameth->set_priv_key(pkey, key, len)) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED);
|
|
goto err;
|
|
}
|
|
} else {
|
|
if (pkey->ameth->set_pub_key == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
goto err;
|
|
}
|
|
|
|
if (!pkey->ameth->set_pub_key(pkey, key, len)) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED);
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
result = 1;
|
|
err:
|
|
if (!result) {
|
|
EVP_PKEY_free(pkey);
|
|
pkey = NULL;
|
|
}
|
|
EVP_PKEY_CTX_free(ctx);
|
|
return pkey;
|
|
}
|
|
|
|
EVP_PKEY *EVP_PKEY_new_raw_private_key_ex(OSSL_LIB_CTX *libctx,
|
|
const char *keytype,
|
|
const char *propq,
|
|
const unsigned char *priv, size_t len)
|
|
{
|
|
return new_raw_key_int(libctx, keytype, propq, EVP_PKEY_NONE, NULL, priv,
|
|
len, 1);
|
|
}
|
|
|
|
EVP_PKEY *EVP_PKEY_new_raw_private_key(int type, ENGINE *e,
|
|
const unsigned char *priv,
|
|
size_t len)
|
|
{
|
|
return new_raw_key_int(NULL, NULL, NULL, type, e, priv, len, 1);
|
|
}
|
|
|
|
EVP_PKEY *EVP_PKEY_new_raw_public_key_ex(OSSL_LIB_CTX *libctx,
|
|
const char *keytype, const char *propq,
|
|
const unsigned char *pub, size_t len)
|
|
{
|
|
return new_raw_key_int(libctx, keytype, propq, EVP_PKEY_NONE, NULL, pub,
|
|
len, 0);
|
|
}
|
|
|
|
EVP_PKEY *EVP_PKEY_new_raw_public_key(int type, ENGINE *e,
|
|
const unsigned char *pub,
|
|
size_t len)
|
|
{
|
|
return new_raw_key_int(NULL, NULL, NULL, type, e, pub, len, 0);
|
|
}
|
|
|
|
struct raw_key_details_st {
|
|
unsigned char **key;
|
|
size_t *len;
|
|
int selection;
|
|
};
|
|
|
|
static OSSL_CALLBACK get_raw_key_details;
|
|
static int get_raw_key_details(const OSSL_PARAM params[], void *arg)
|
|
{
|
|
const OSSL_PARAM *p = NULL;
|
|
struct raw_key_details_st *raw_key = arg;
|
|
|
|
if (raw_key->selection == OSSL_KEYMGMT_SELECT_PRIVATE_KEY) {
|
|
if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PRIV_KEY))
|
|
!= NULL)
|
|
return OSSL_PARAM_get_octet_string(p, (void **)raw_key->key,
|
|
raw_key->key == NULL ? 0 : *raw_key->len,
|
|
raw_key->len);
|
|
} else if (raw_key->selection == OSSL_KEYMGMT_SELECT_PUBLIC_KEY) {
|
|
if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PUB_KEY))
|
|
!= NULL)
|
|
return OSSL_PARAM_get_octet_string(p, (void **)raw_key->key,
|
|
raw_key->key == NULL ? 0 : *raw_key->len,
|
|
raw_key->len);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int EVP_PKEY_get_raw_private_key(const EVP_PKEY *pkey, unsigned char *priv,
|
|
size_t *len)
|
|
{
|
|
if (pkey->keymgmt != NULL) {
|
|
struct raw_key_details_st raw_key;
|
|
|
|
raw_key.key = priv == NULL ? NULL : &priv;
|
|
raw_key.len = len;
|
|
raw_key.selection = OSSL_KEYMGMT_SELECT_PRIVATE_KEY;
|
|
|
|
return evp_keymgmt_util_export(pkey, OSSL_KEYMGMT_SELECT_PRIVATE_KEY,
|
|
get_raw_key_details, &raw_key);
|
|
}
|
|
|
|
if (pkey->ameth == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return 0;
|
|
}
|
|
|
|
if (pkey->ameth->get_priv_key == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return 0;
|
|
}
|
|
|
|
if (!pkey->ameth->get_priv_key(pkey, priv, len)) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_GET_RAW_KEY_FAILED);
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
int EVP_PKEY_get_raw_public_key(const EVP_PKEY *pkey, unsigned char *pub,
|
|
size_t *len)
|
|
{
|
|
if (pkey->keymgmt != NULL) {
|
|
struct raw_key_details_st raw_key;
|
|
|
|
raw_key.key = pub == NULL ? NULL : &pub;
|
|
raw_key.len = len;
|
|
raw_key.selection = OSSL_KEYMGMT_SELECT_PUBLIC_KEY;
|
|
|
|
return evp_keymgmt_util_export(pkey, OSSL_KEYMGMT_SELECT_PUBLIC_KEY,
|
|
get_raw_key_details, &raw_key);
|
|
}
|
|
|
|
if (pkey->ameth == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return 0;
|
|
}
|
|
|
|
if (pkey->ameth->get_pub_key == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return 0;
|
|
}
|
|
|
|
if (!pkey->ameth->get_pub_key(pkey, pub, len)) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_GET_RAW_KEY_FAILED);
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static EVP_PKEY *new_cmac_key_int(const unsigned char *priv, size_t len,
|
|
const char *cipher_name,
|
|
const EVP_CIPHER *cipher,
|
|
OSSL_LIB_CTX *libctx,
|
|
const char *propq, ENGINE *e)
|
|
{
|
|
# ifndef OPENSSL_NO_CMAC
|
|
# ifndef OPENSSL_NO_ENGINE
|
|
const char *engine_id = e != NULL ? ENGINE_get_id(e) : NULL;
|
|
# endif
|
|
OSSL_PARAM params[5], *p = params;
|
|
EVP_PKEY *pkey = NULL;
|
|
EVP_PKEY_CTX *ctx;
|
|
|
|
if (cipher != NULL)
|
|
cipher_name = EVP_CIPHER_get0_name(cipher);
|
|
|
|
if (cipher_name == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED);
|
|
return NULL;
|
|
}
|
|
|
|
ctx = EVP_PKEY_CTX_new_from_name(libctx, "CMAC", propq);
|
|
if (ctx == NULL)
|
|
goto err;
|
|
|
|
if (EVP_PKEY_fromdata_init(ctx) <= 0) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED);
|
|
goto err;
|
|
}
|
|
|
|
*p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_PRIV_KEY,
|
|
(void *)priv, len);
|
|
*p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_CIPHER,
|
|
(char *)cipher_name, 0);
|
|
if (propq != NULL)
|
|
*p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_PROPERTIES,
|
|
(char *)propq, 0);
|
|
# ifndef OPENSSL_NO_ENGINE
|
|
if (engine_id != NULL)
|
|
*p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_ENGINE,
|
|
(char *)engine_id, 0);
|
|
# endif
|
|
*p = OSSL_PARAM_construct_end();
|
|
|
|
if (EVP_PKEY_fromdata(ctx, &pkey, EVP_PKEY_KEYPAIR, params) <= 0) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED);
|
|
goto err;
|
|
}
|
|
|
|
err:
|
|
EVP_PKEY_CTX_free(ctx);
|
|
|
|
return pkey;
|
|
# else
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return NULL;
|
|
# endif
|
|
}
|
|
|
|
EVP_PKEY *EVP_PKEY_new_CMAC_key(ENGINE *e, const unsigned char *priv,
|
|
size_t len, const EVP_CIPHER *cipher)
|
|
{
|
|
return new_cmac_key_int(priv, len, NULL, cipher, NULL, NULL, e);
|
|
}
|
|
|
|
int EVP_PKEY_set_type(EVP_PKEY *pkey, int type)
|
|
{
|
|
return pkey_set_type(pkey, NULL, type, NULL, -1, NULL);
|
|
}
|
|
|
|
int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len)
|
|
{
|
|
return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, str, len, NULL);
|
|
}
|
|
|
|
# ifndef OPENSSL_NO_ENGINE
|
|
int EVP_PKEY_set1_engine(EVP_PKEY *pkey, ENGINE *e)
|
|
{
|
|
if (e != NULL) {
|
|
if (!ENGINE_init(e)) {
|
|
ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB);
|
|
return 0;
|
|
}
|
|
if (ENGINE_get_pkey_meth(e, pkey->type) == NULL) {
|
|
ENGINE_finish(e);
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM);
|
|
return 0;
|
|
}
|
|
}
|
|
ENGINE_finish(pkey->pmeth_engine);
|
|
pkey->pmeth_engine = e;
|
|
return 1;
|
|
}
|
|
|
|
ENGINE *EVP_PKEY_get0_engine(const EVP_PKEY *pkey)
|
|
{
|
|
return pkey->engine;
|
|
}
|
|
# endif
|
|
|
|
# ifndef OPENSSL_NO_DEPRECATED_3_0
|
|
static void detect_foreign_key(EVP_PKEY *pkey)
|
|
{
|
|
switch (pkey->type) {
|
|
case EVP_PKEY_RSA:
|
|
case EVP_PKEY_RSA_PSS:
|
|
pkey->foreign = pkey->pkey.rsa != NULL
|
|
&& ossl_rsa_is_foreign(pkey->pkey.rsa);
|
|
break;
|
|
# ifndef OPENSSL_NO_EC
|
|
case EVP_PKEY_SM2:
|
|
break;
|
|
case EVP_PKEY_EC:
|
|
pkey->foreign = pkey->pkey.ec != NULL
|
|
&& ossl_ec_key_is_foreign(pkey->pkey.ec);
|
|
break;
|
|
# endif
|
|
# ifndef OPENSSL_NO_DSA
|
|
case EVP_PKEY_DSA:
|
|
pkey->foreign = pkey->pkey.dsa != NULL
|
|
&& ossl_dsa_is_foreign(pkey->pkey.dsa);
|
|
break;
|
|
#endif
|
|
# ifndef OPENSSL_NO_DH
|
|
case EVP_PKEY_DH:
|
|
pkey->foreign = pkey->pkey.dh != NULL
|
|
&& ossl_dh_is_foreign(pkey->pkey.dh);
|
|
break;
|
|
#endif
|
|
default:
|
|
pkey->foreign = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key)
|
|
{
|
|
# ifndef OPENSSL_NO_EC
|
|
int pktype;
|
|
|
|
pktype = EVP_PKEY_type(type);
|
|
if ((key != NULL) && (pktype == EVP_PKEY_EC || pktype == EVP_PKEY_SM2)) {
|
|
const EC_GROUP *group = EC_KEY_get0_group(key);
|
|
|
|
if (group != NULL) {
|
|
int curve = EC_GROUP_get_curve_name(group);
|
|
|
|
/*
|
|
* Regardless of what is requested the SM2 curve must be SM2 type,
|
|
* and non SM2 curves are EC type.
|
|
*/
|
|
if (curve == NID_sm2 && pktype == EVP_PKEY_EC)
|
|
type = EVP_PKEY_SM2;
|
|
else if(curve != NID_sm2 && pktype == EVP_PKEY_SM2)
|
|
type = EVP_PKEY_EC;
|
|
}
|
|
}
|
|
# endif
|
|
|
|
if (pkey == NULL || !EVP_PKEY_set_type(pkey, type))
|
|
return 0;
|
|
|
|
pkey->pkey.ptr = key;
|
|
detect_foreign_key(pkey);
|
|
|
|
return (key != NULL);
|
|
}
|
|
# endif
|
|
|
|
void *EVP_PKEY_get0(const EVP_PKEY *pkey)
|
|
{
|
|
if (pkey == NULL)
|
|
return NULL;
|
|
|
|
if (!evp_pkey_is_provided(pkey))
|
|
return pkey->pkey.ptr;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len)
|
|
{
|
|
const ASN1_OCTET_STRING *os = NULL;
|
|
if (pkey->type != EVP_PKEY_HMAC) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_AN_HMAC_KEY);
|
|
return NULL;
|
|
}
|
|
os = evp_pkey_get_legacy((EVP_PKEY *)pkey);
|
|
if (os != NULL) {
|
|
*len = os->length;
|
|
return os->data;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
# ifndef OPENSSL_NO_POLY1305
|
|
const unsigned char *EVP_PKEY_get0_poly1305(const EVP_PKEY *pkey, size_t *len)
|
|
{
|
|
const ASN1_OCTET_STRING *os = NULL;
|
|
if (pkey->type != EVP_PKEY_POLY1305) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_POLY1305_KEY);
|
|
return NULL;
|
|
}
|
|
os = evp_pkey_get_legacy((EVP_PKEY *)pkey);
|
|
if (os != NULL) {
|
|
*len = os->length;
|
|
return os->data;
|
|
}
|
|
return NULL;
|
|
}
|
|
# endif
|
|
|
|
# ifndef OPENSSL_NO_SIPHASH
|
|
const unsigned char *EVP_PKEY_get0_siphash(const EVP_PKEY *pkey, size_t *len)
|
|
{
|
|
const ASN1_OCTET_STRING *os = NULL;
|
|
|
|
if (pkey->type != EVP_PKEY_SIPHASH) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_SIPHASH_KEY);
|
|
return NULL;
|
|
}
|
|
os = evp_pkey_get_legacy((EVP_PKEY *)pkey);
|
|
if (os != NULL) {
|
|
*len = os->length;
|
|
return os->data;
|
|
}
|
|
return NULL;
|
|
}
|
|
# endif
|
|
|
|
# ifndef OPENSSL_NO_DSA
|
|
static DSA *evp_pkey_get0_DSA_int(const EVP_PKEY *pkey)
|
|
{
|
|
if (pkey->type != EVP_PKEY_DSA) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_DSA_KEY);
|
|
return NULL;
|
|
}
|
|
return evp_pkey_get_legacy((EVP_PKEY *)pkey);
|
|
}
|
|
|
|
const DSA *EVP_PKEY_get0_DSA(const EVP_PKEY *pkey)
|
|
{
|
|
return evp_pkey_get0_DSA_int(pkey);
|
|
}
|
|
|
|
int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key)
|
|
{
|
|
int ret = EVP_PKEY_assign_DSA(pkey, key);
|
|
if (ret)
|
|
DSA_up_ref(key);
|
|
return ret;
|
|
}
|
|
DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey)
|
|
{
|
|
DSA *ret = evp_pkey_get0_DSA_int(pkey);
|
|
|
|
if (ret != NULL)
|
|
DSA_up_ref(ret);
|
|
return ret;
|
|
}
|
|
# endif /* OPENSSL_NO_DSA */
|
|
|
|
# ifndef OPENSSL_NO_ECX
|
|
static const ECX_KEY *evp_pkey_get0_ECX_KEY(const EVP_PKEY *pkey, int type)
|
|
{
|
|
if (EVP_PKEY_get_base_id(pkey) != type) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_ECX_KEY);
|
|
return NULL;
|
|
}
|
|
return evp_pkey_get_legacy((EVP_PKEY *)pkey);
|
|
}
|
|
|
|
static ECX_KEY *evp_pkey_get1_ECX_KEY(EVP_PKEY *pkey, int type)
|
|
{
|
|
ECX_KEY *ret = (ECX_KEY *)evp_pkey_get0_ECX_KEY(pkey, type);
|
|
|
|
if (ret != NULL && !ossl_ecx_key_up_ref(ret))
|
|
ret = NULL;
|
|
return ret;
|
|
}
|
|
|
|
# define IMPLEMENT_ECX_VARIANT(NAME) \
|
|
ECX_KEY *ossl_evp_pkey_get1_##NAME(EVP_PKEY *pkey) \
|
|
{ \
|
|
return evp_pkey_get1_ECX_KEY(pkey, EVP_PKEY_##NAME); \
|
|
}
|
|
IMPLEMENT_ECX_VARIANT(X25519)
|
|
IMPLEMENT_ECX_VARIANT(X448)
|
|
IMPLEMENT_ECX_VARIANT(ED25519)
|
|
IMPLEMENT_ECX_VARIANT(ED448)
|
|
|
|
# endif /* OPENSSL_NO_ECX */
|
|
|
|
# if !defined(OPENSSL_NO_DH) && !defined(OPENSSL_NO_DEPRECATED_3_0)
|
|
|
|
int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *dhkey)
|
|
{
|
|
int ret, type;
|
|
|
|
/*
|
|
* ossl_dh_is_named_safe_prime_group() returns 1 for named safe prime groups
|
|
* related to ffdhe and modp (which cache q = (p - 1) / 2),
|
|
* and returns 0 for all other dh parameter generation types including
|
|
* RFC5114 named groups.
|
|
*
|
|
* The EVP_PKEY_DH type is used for dh parameter generation types:
|
|
* - named safe prime groups related to ffdhe and modp
|
|
* - safe prime generator
|
|
*
|
|
* The type EVP_PKEY_DHX is used for dh parameter generation types
|
|
* - fips186-4 and fips186-2
|
|
* - rfc5114 named groups.
|
|
*
|
|
* The EVP_PKEY_DH type is used to save PKCS#3 data than can be stored
|
|
* without a q value.
|
|
* The EVP_PKEY_DHX type is used to save X9.42 data that requires the
|
|
* q value to be stored.
|
|
*/
|
|
if (ossl_dh_is_named_safe_prime_group(dhkey))
|
|
type = EVP_PKEY_DH;
|
|
else
|
|
type = DH_get0_q(dhkey) == NULL ? EVP_PKEY_DH : EVP_PKEY_DHX;
|
|
|
|
ret = EVP_PKEY_assign(pkey, type, dhkey);
|
|
|
|
if (ret)
|
|
DH_up_ref(dhkey);
|
|
return ret;
|
|
}
|
|
|
|
DH *evp_pkey_get0_DH_int(const EVP_PKEY *pkey)
|
|
{
|
|
if (pkey->type != EVP_PKEY_DH && pkey->type != EVP_PKEY_DHX) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_DH_KEY);
|
|
return NULL;
|
|
}
|
|
return evp_pkey_get_legacy((EVP_PKEY *)pkey);
|
|
}
|
|
|
|
const DH *EVP_PKEY_get0_DH(const EVP_PKEY *pkey)
|
|
{
|
|
return evp_pkey_get0_DH_int(pkey);
|
|
}
|
|
|
|
DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey)
|
|
{
|
|
DH *ret = evp_pkey_get0_DH_int(pkey);
|
|
|
|
if (ret != NULL)
|
|
DH_up_ref(ret);
|
|
return ret;
|
|
}
|
|
# endif
|
|
|
|
int EVP_PKEY_type(int type)
|
|
{
|
|
int ret;
|
|
const EVP_PKEY_ASN1_METHOD *ameth;
|
|
ENGINE *e;
|
|
ameth = EVP_PKEY_asn1_find(&e, type);
|
|
if (ameth)
|
|
ret = ameth->pkey_id;
|
|
else
|
|
ret = NID_undef;
|
|
# ifndef OPENSSL_NO_ENGINE
|
|
ENGINE_finish(e);
|
|
# endif
|
|
return ret;
|
|
}
|
|
|
|
int EVP_PKEY_get_id(const EVP_PKEY *pkey)
|
|
{
|
|
return pkey->type;
|
|
}
|
|
|
|
int EVP_PKEY_get_base_id(const EVP_PKEY *pkey)
|
|
{
|
|
return EVP_PKEY_type(pkey->type);
|
|
}
|
|
|
|
/*
|
|
* These hard coded cases are pure hackery to get around the fact
|
|
* that names in crypto/objects/objects.txt are a mess. There is
|
|
* no "EC", and "RSA" leads to the NID for 2.5.8.1.1, an OID that's
|
|
* fallen out in favor of { pkcs-1 1 }, i.e. 1.2.840.113549.1.1.1,
|
|
* the NID of which is used for EVP_PKEY_RSA. Strangely enough,
|
|
* "DSA" is accurate... but still, better be safe and hard-code
|
|
* names that we know.
|
|
* On a similar topic, EVP_PKEY_type(EVP_PKEY_SM2) will result in
|
|
* EVP_PKEY_EC, because of aliasing.
|
|
* This should be cleaned away along with all other #legacy support.
|
|
*/
|
|
static const OSSL_ITEM standard_name2type[] = {
|
|
{ EVP_PKEY_RSA, "RSA" },
|
|
{ EVP_PKEY_RSA_PSS, "RSA-PSS" },
|
|
{ EVP_PKEY_EC, "EC" },
|
|
{ EVP_PKEY_ED25519, "ED25519" },
|
|
{ EVP_PKEY_ED448, "ED448" },
|
|
{ EVP_PKEY_X25519, "X25519" },
|
|
{ EVP_PKEY_X448, "X448" },
|
|
{ EVP_PKEY_SM2, "SM2" },
|
|
{ EVP_PKEY_DH, "DH" },
|
|
{ EVP_PKEY_DHX, "X9.42 DH" },
|
|
{ EVP_PKEY_DHX, "DHX" },
|
|
{ EVP_PKEY_DSA, "DSA" },
|
|
};
|
|
|
|
int evp_pkey_name2type(const char *name)
|
|
{
|
|
int type;
|
|
size_t i;
|
|
|
|
for (i = 0; i < OSSL_NELEM(standard_name2type); i++) {
|
|
if (OPENSSL_strcasecmp(name, standard_name2type[i].ptr) == 0)
|
|
return (int)standard_name2type[i].id;
|
|
}
|
|
|
|
if ((type = EVP_PKEY_type(OBJ_sn2nid(name))) != NID_undef)
|
|
return type;
|
|
return EVP_PKEY_type(OBJ_ln2nid(name));
|
|
}
|
|
|
|
const char *evp_pkey_type2name(int type)
|
|
{
|
|
size_t i;
|
|
|
|
for (i = 0; i < OSSL_NELEM(standard_name2type); i++) {
|
|
if (type == (int)standard_name2type[i].id)
|
|
return standard_name2type[i].ptr;
|
|
}
|
|
|
|
return OBJ_nid2sn(type);
|
|
}
|
|
|
|
int EVP_PKEY_is_a(const EVP_PKEY *pkey, const char *name)
|
|
{
|
|
if (pkey == NULL)
|
|
return 0;
|
|
if (pkey->keymgmt == NULL)
|
|
return pkey->type == evp_pkey_name2type(name);
|
|
return EVP_KEYMGMT_is_a(pkey->keymgmt, name);
|
|
}
|
|
|
|
int EVP_PKEY_type_names_do_all(const EVP_PKEY *pkey,
|
|
void (*fn)(const char *name, void *data),
|
|
void *data)
|
|
{
|
|
if (!evp_pkey_is_typed(pkey))
|
|
return 0;
|
|
|
|
if (!evp_pkey_is_provided(pkey)) {
|
|
const char *name = OBJ_nid2sn(EVP_PKEY_get_id(pkey));
|
|
|
|
fn(name, data);
|
|
return 1;
|
|
}
|
|
return EVP_KEYMGMT_names_do_all(pkey->keymgmt, fn, data);
|
|
}
|
|
|
|
int EVP_PKEY_can_sign(const EVP_PKEY *pkey)
|
|
{
|
|
if (pkey->keymgmt == NULL) {
|
|
switch (EVP_PKEY_get_base_id(pkey)) {
|
|
case EVP_PKEY_RSA:
|
|
case EVP_PKEY_RSA_PSS:
|
|
return 1;
|
|
# ifndef OPENSSL_NO_DSA
|
|
case EVP_PKEY_DSA:
|
|
return 1;
|
|
# endif
|
|
# ifndef OPENSSL_NO_EC
|
|
case EVP_PKEY_ED25519:
|
|
case EVP_PKEY_ED448:
|
|
return 1;
|
|
case EVP_PKEY_EC: /* Including SM2 */
|
|
return EC_KEY_can_sign(pkey->pkey.ec);
|
|
# endif
|
|
default:
|
|
break;
|
|
}
|
|
} else {
|
|
const OSSL_PROVIDER *prov = EVP_KEYMGMT_get0_provider(pkey->keymgmt);
|
|
OSSL_LIB_CTX *libctx = ossl_provider_libctx(prov);
|
|
const char *supported_sig =
|
|
pkey->keymgmt->query_operation_name != NULL
|
|
? pkey->keymgmt->query_operation_name(OSSL_OP_SIGNATURE)
|
|
: EVP_KEYMGMT_get0_name(pkey->keymgmt);
|
|
EVP_SIGNATURE *signature = NULL;
|
|
|
|
signature = EVP_SIGNATURE_fetch(libctx, supported_sig, NULL);
|
|
if (signature != NULL) {
|
|
EVP_SIGNATURE_free(signature);
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int print_reset_indent(BIO **out, int pop_f_prefix, long saved_indent)
|
|
{
|
|
BIO_set_indent(*out, saved_indent);
|
|
if (pop_f_prefix) {
|
|
BIO *next = BIO_pop(*out);
|
|
|
|
BIO_free(*out);
|
|
*out = next;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int print_set_indent(BIO **out, int *pop_f_prefix, long *saved_indent,
|
|
long indent)
|
|
{
|
|
*pop_f_prefix = 0;
|
|
*saved_indent = 0;
|
|
if (indent > 0) {
|
|
long i = BIO_get_indent(*out);
|
|
|
|
*saved_indent = (i < 0 ? 0 : i);
|
|
if (BIO_set_indent(*out, indent) <= 0) {
|
|
BIO *prefbio = BIO_new(BIO_f_prefix());
|
|
|
|
if (prefbio == NULL)
|
|
return 0;
|
|
*out = BIO_push(prefbio, *out);
|
|
*pop_f_prefix = 1;
|
|
}
|
|
if (BIO_set_indent(*out, indent) <= 0) {
|
|
print_reset_indent(out, *pop_f_prefix, *saved_indent);
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent,
|
|
const char *kstr)
|
|
{
|
|
return BIO_indent(out, indent, 128)
|
|
&& BIO_printf(out, "%s algorithm \"%s\" unsupported\n",
|
|
kstr, OBJ_nid2ln(pkey->type)) > 0;
|
|
}
|
|
|
|
static int print_pkey(const EVP_PKEY *pkey, BIO *out, int indent,
|
|
int selection /* For provided encoding */,
|
|
const char *propquery /* For provided encoding */,
|
|
int (*legacy_print)(BIO *out, const EVP_PKEY *pkey,
|
|
int indent, ASN1_PCTX *pctx),
|
|
ASN1_PCTX *legacy_pctx /* For legacy print */)
|
|
{
|
|
int pop_f_prefix;
|
|
long saved_indent;
|
|
OSSL_ENCODER_CTX *ctx = NULL;
|
|
int ret = -2; /* default to unsupported */
|
|
|
|
if (!print_set_indent(&out, &pop_f_prefix, &saved_indent, indent))
|
|
return 0;
|
|
|
|
ctx = OSSL_ENCODER_CTX_new_for_pkey(pkey, selection, "TEXT", NULL,
|
|
propquery);
|
|
if (OSSL_ENCODER_CTX_get_num_encoders(ctx) != 0)
|
|
ret = OSSL_ENCODER_to_bio(ctx, out);
|
|
OSSL_ENCODER_CTX_free(ctx);
|
|
|
|
if (ret != -2)
|
|
goto end;
|
|
|
|
/* legacy fallback */
|
|
if (legacy_print != NULL)
|
|
ret = legacy_print(out, pkey, 0, legacy_pctx);
|
|
else
|
|
ret = unsup_alg(out, pkey, 0, "Public Key");
|
|
|
|
end:
|
|
print_reset_indent(&out, pop_f_prefix, saved_indent);
|
|
return ret;
|
|
}
|
|
|
|
int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey,
|
|
int indent, ASN1_PCTX *pctx)
|
|
{
|
|
return print_pkey(pkey, out, indent, EVP_PKEY_PUBLIC_KEY, NULL,
|
|
(pkey->ameth != NULL ? pkey->ameth->pub_print : NULL),
|
|
pctx);
|
|
}
|
|
|
|
int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey,
|
|
int indent, ASN1_PCTX *pctx)
|
|
{
|
|
return print_pkey(pkey, out, indent, EVP_PKEY_PRIVATE_KEY, NULL,
|
|
(pkey->ameth != NULL ? pkey->ameth->priv_print : NULL),
|
|
pctx);
|
|
}
|
|
|
|
int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey,
|
|
int indent, ASN1_PCTX *pctx)
|
|
{
|
|
return print_pkey(pkey, out, indent, EVP_PKEY_KEY_PARAMETERS, NULL,
|
|
(pkey->ameth != NULL ? pkey->ameth->param_print : NULL),
|
|
pctx);
|
|
}
|
|
|
|
# ifndef OPENSSL_NO_STDIO
|
|
int EVP_PKEY_print_public_fp(FILE *fp, const EVP_PKEY *pkey,
|
|
int indent, ASN1_PCTX *pctx)
|
|
{
|
|
int ret;
|
|
BIO *b = BIO_new_fp(fp, BIO_NOCLOSE);
|
|
|
|
if (b == NULL)
|
|
return 0;
|
|
ret = EVP_PKEY_print_public(b, pkey, indent, pctx);
|
|
BIO_free(b);
|
|
return ret;
|
|
}
|
|
|
|
int EVP_PKEY_print_private_fp(FILE *fp, const EVP_PKEY *pkey,
|
|
int indent, ASN1_PCTX *pctx)
|
|
{
|
|
int ret;
|
|
BIO *b = BIO_new_fp(fp, BIO_NOCLOSE);
|
|
|
|
if (b == NULL)
|
|
return 0;
|
|
ret = EVP_PKEY_print_private(b, pkey, indent, pctx);
|
|
BIO_free(b);
|
|
return ret;
|
|
}
|
|
|
|
int EVP_PKEY_print_params_fp(FILE *fp, const EVP_PKEY *pkey,
|
|
int indent, ASN1_PCTX *pctx)
|
|
{
|
|
int ret;
|
|
BIO *b = BIO_new_fp(fp, BIO_NOCLOSE);
|
|
|
|
if (b == NULL)
|
|
return 0;
|
|
ret = EVP_PKEY_print_params(b, pkey, indent, pctx);
|
|
BIO_free(b);
|
|
return ret;
|
|
}
|
|
# endif
|
|
|
|
static void mdname2nid(const char *mdname, void *data)
|
|
{
|
|
int *nid = (int *)data;
|
|
|
|
if (*nid != NID_undef)
|
|
return;
|
|
|
|
*nid = OBJ_sn2nid(mdname);
|
|
if (*nid == NID_undef)
|
|
*nid = OBJ_ln2nid(mdname);
|
|
}
|
|
|
|
static int legacy_asn1_ctrl_to_param(EVP_PKEY *pkey, int op,
|
|
int arg1, void *arg2)
|
|
{
|
|
if (pkey->keymgmt == NULL)
|
|
return 0;
|
|
switch (op) {
|
|
case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
|
|
{
|
|
char mdname[80] = "";
|
|
int rv = EVP_PKEY_get_default_digest_name(pkey, mdname,
|
|
sizeof(mdname));
|
|
|
|
if (rv > 0) {
|
|
int mdnum;
|
|
OSSL_LIB_CTX *libctx = ossl_provider_libctx(pkey->keymgmt->prov);
|
|
/* Make sure the MD is in the namemap if available */
|
|
EVP_MD *md;
|
|
OSSL_NAMEMAP *namemap;
|
|
int nid = NID_undef;
|
|
|
|
(void)ERR_set_mark();
|
|
md = EVP_MD_fetch(libctx, mdname, NULL);
|
|
(void)ERR_pop_to_mark();
|
|
namemap = ossl_namemap_stored(libctx);
|
|
|
|
/*
|
|
* The only reason to fetch the MD was to make sure it is in the
|
|
* namemap. We can immediately free it.
|
|
*/
|
|
EVP_MD_free(md);
|
|
mdnum = ossl_namemap_name2num(namemap, mdname);
|
|
if (mdnum == 0)
|
|
return 0;
|
|
|
|
/*
|
|
* We have the namemap number - now we need to find the
|
|
* associated nid
|
|
*/
|
|
if (!ossl_namemap_doall_names(namemap, mdnum, mdname2nid, &nid))
|
|
return 0;
|
|
*(int *)arg2 = nid;
|
|
}
|
|
return rv;
|
|
}
|
|
default:
|
|
return -2;
|
|
}
|
|
}
|
|
|
|
static int evp_pkey_asn1_ctrl(EVP_PKEY *pkey, int op, int arg1, void *arg2)
|
|
{
|
|
if (pkey->ameth == NULL)
|
|
return legacy_asn1_ctrl_to_param(pkey, op, arg1, arg2);
|
|
if (pkey->ameth->pkey_ctrl == NULL)
|
|
return -2;
|
|
return pkey->ameth->pkey_ctrl(pkey, op, arg1, arg2);
|
|
}
|
|
|
|
int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid)
|
|
{
|
|
if (pkey == NULL)
|
|
return 0;
|
|
return evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, 0, pnid);
|
|
}
|
|
|
|
int EVP_PKEY_get_default_digest_name(EVP_PKEY *pkey,
|
|
char *mdname, size_t mdname_sz)
|
|
{
|
|
if (pkey->ameth == NULL)
|
|
return evp_keymgmt_util_get_deflt_digest_name(pkey->keymgmt,
|
|
pkey->keydata,
|
|
mdname, mdname_sz);
|
|
|
|
{
|
|
int nid = NID_undef;
|
|
int rv = EVP_PKEY_get_default_digest_nid(pkey, &nid);
|
|
const char *name = rv > 0 ? OBJ_nid2sn(nid) : NULL;
|
|
|
|
if (rv > 0)
|
|
OPENSSL_strlcpy(mdname, name, mdname_sz);
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
int EVP_PKEY_get_group_name(const EVP_PKEY *pkey, char *gname, size_t gname_sz,
|
|
size_t *gname_len)
|
|
{
|
|
return EVP_PKEY_get_utf8_string_param(pkey, OSSL_PKEY_PARAM_GROUP_NAME,
|
|
gname, gname_sz, gname_len);
|
|
}
|
|
|
|
int EVP_PKEY_digestsign_supports_digest(EVP_PKEY *pkey, OSSL_LIB_CTX *libctx,
|
|
const char *name, const char *propq)
|
|
{
|
|
int rv;
|
|
EVP_MD_CTX *ctx = NULL;
|
|
|
|
if ((ctx = EVP_MD_CTX_new()) == NULL)
|
|
return -1;
|
|
|
|
ERR_set_mark();
|
|
rv = EVP_DigestSignInit_ex(ctx, NULL, name, libctx,
|
|
propq, pkey, NULL);
|
|
ERR_pop_to_mark();
|
|
|
|
EVP_MD_CTX_free(ctx);
|
|
return rv;
|
|
}
|
|
|
|
int EVP_PKEY_set1_encoded_public_key(EVP_PKEY *pkey, const unsigned char *pub,
|
|
size_t publen)
|
|
{
|
|
if (pkey == NULL)
|
|
return 0;
|
|
if (evp_pkey_is_provided(pkey))
|
|
return
|
|
EVP_PKEY_set_octet_string_param(pkey,
|
|
OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY,
|
|
(unsigned char *)pub, publen);
|
|
|
|
if (publen > INT_MAX)
|
|
return 0;
|
|
/* Historically this function was EVP_PKEY_set1_tls_encodedpoint */
|
|
if (evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SET1_TLS_ENCPT, publen,
|
|
(void *)pub) <= 0)
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
size_t EVP_PKEY_get1_encoded_public_key(EVP_PKEY *pkey, unsigned char **ppub)
|
|
{
|
|
int rv;
|
|
|
|
if (pkey == NULL)
|
|
return 0;
|
|
if (evp_pkey_is_provided(pkey)) {
|
|
size_t return_size = OSSL_PARAM_UNMODIFIED;
|
|
unsigned char *buf;
|
|
|
|
/*
|
|
* We know that this is going to fail, but it will give us a size
|
|
* to allocate.
|
|
*/
|
|
EVP_PKEY_get_octet_string_param(pkey,
|
|
OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY,
|
|
NULL, 0, &return_size);
|
|
if (return_size == OSSL_PARAM_UNMODIFIED)
|
|
return 0;
|
|
|
|
*ppub = NULL;
|
|
buf = OPENSSL_malloc(return_size);
|
|
if (buf == NULL)
|
|
return 0;
|
|
|
|
if (!EVP_PKEY_get_octet_string_param(pkey,
|
|
OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY,
|
|
buf, return_size, NULL)) {
|
|
OPENSSL_free(buf);
|
|
return 0;
|
|
}
|
|
*ppub = buf;
|
|
return return_size;
|
|
}
|
|
|
|
|
|
rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_GET1_TLS_ENCPT, 0, ppub);
|
|
if (rv <= 0)
|
|
return 0;
|
|
return rv;
|
|
}
|
|
|
|
#endif /* FIPS_MODULE */
|
|
|
|
/*- All methods below can also be used in FIPS_MODULE */
|
|
|
|
EVP_PKEY *EVP_PKEY_new(void)
|
|
{
|
|
EVP_PKEY *ret = OPENSSL_zalloc(sizeof(*ret));
|
|
|
|
if (ret == NULL)
|
|
return NULL;
|
|
|
|
ret->type = EVP_PKEY_NONE;
|
|
ret->save_type = EVP_PKEY_NONE;
|
|
|
|
if (!CRYPTO_NEW_REF(&ret->references, 1))
|
|
goto err;
|
|
|
|
ret->lock = CRYPTO_THREAD_lock_new();
|
|
if (ret->lock == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
|
|
goto err;
|
|
}
|
|
|
|
#ifndef FIPS_MODULE
|
|
ret->save_parameters = 1;
|
|
if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, ret, &ret->ex_data)) {
|
|
ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
|
|
goto err;
|
|
}
|
|
#endif
|
|
return ret;
|
|
|
|
err:
|
|
CRYPTO_FREE_REF(&ret->references);
|
|
CRYPTO_THREAD_lock_free(ret->lock);
|
|
OPENSSL_free(ret);
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Setup a public key management method.
|
|
*
|
|
* For legacy keys, either |type| or |str| is expected to have the type
|
|
* information. In this case, the setup consists of finding an ASN1 method
|
|
* and potentially an ENGINE, and setting those fields in |pkey|.
|
|
*
|
|
* For provider side keys, |keymgmt| is expected to be non-NULL. In this
|
|
* case, the setup consists of setting the |keymgmt| field in |pkey|.
|
|
*
|
|
* If pkey is NULL just return 1 or 0 if the key management method exists.
|
|
*/
|
|
|
|
static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str,
|
|
int len, EVP_KEYMGMT *keymgmt)
|
|
{
|
|
#ifndef FIPS_MODULE
|
|
const EVP_PKEY_ASN1_METHOD *ameth = NULL;
|
|
ENGINE **eptr = (e == NULL) ? &e : NULL;
|
|
#endif
|
|
|
|
/*
|
|
* The setups can't set both legacy and provider side methods.
|
|
* It is forbidden
|
|
*/
|
|
if (!ossl_assert(type == EVP_PKEY_NONE || keymgmt == NULL)
|
|
|| !ossl_assert(e == NULL || keymgmt == NULL)) {
|
|
ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);
|
|
return 0;
|
|
}
|
|
|
|
if (pkey != NULL) {
|
|
int free_it = 0;
|
|
|
|
#ifndef FIPS_MODULE
|
|
free_it = free_it || pkey->pkey.ptr != NULL;
|
|
#endif
|
|
free_it = free_it || pkey->keydata != NULL;
|
|
if (free_it)
|
|
evp_pkey_free_it(pkey);
|
|
#ifndef FIPS_MODULE
|
|
/*
|
|
* If key type matches and a method exists then this lookup has
|
|
* succeeded once so just indicate success.
|
|
*/
|
|
if (pkey->type != EVP_PKEY_NONE
|
|
&& type == pkey->save_type
|
|
&& pkey->ameth != NULL)
|
|
return 1;
|
|
# ifndef OPENSSL_NO_ENGINE
|
|
/* If we have ENGINEs release them */
|
|
ENGINE_finish(pkey->engine);
|
|
pkey->engine = NULL;
|
|
ENGINE_finish(pkey->pmeth_engine);
|
|
pkey->pmeth_engine = NULL;
|
|
# endif
|
|
#endif
|
|
}
|
|
#ifndef FIPS_MODULE
|
|
if (str != NULL)
|
|
ameth = EVP_PKEY_asn1_find_str(eptr, str, len);
|
|
else if (type != EVP_PKEY_NONE)
|
|
ameth = EVP_PKEY_asn1_find(eptr, type);
|
|
# ifndef OPENSSL_NO_ENGINE
|
|
if (pkey == NULL && eptr != NULL)
|
|
ENGINE_finish(e);
|
|
# endif
|
|
#endif
|
|
|
|
|
|
{
|
|
int check = 1;
|
|
|
|
#ifndef FIPS_MODULE
|
|
check = check && ameth == NULL;
|
|
#endif
|
|
check = check && keymgmt == NULL;
|
|
if (check) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM);
|
|
return 0;
|
|
}
|
|
}
|
|
if (pkey != NULL) {
|
|
if (keymgmt != NULL && !EVP_KEYMGMT_up_ref(keymgmt)) {
|
|
ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);
|
|
return 0;
|
|
}
|
|
|
|
pkey->keymgmt = keymgmt;
|
|
|
|
pkey->save_type = type;
|
|
pkey->type = type;
|
|
|
|
#ifndef FIPS_MODULE
|
|
/*
|
|
* If the internal "origin" key is provider side, don't save |ameth|.
|
|
* The main reason is that |ameth| is one factor to detect that the
|
|
* internal "origin" key is a legacy one.
|
|
*/
|
|
if (keymgmt == NULL)
|
|
pkey->ameth = ameth;
|
|
|
|
/*
|
|
* The EVP_PKEY_ASN1_METHOD |pkey_id| retains its legacy key purpose
|
|
* for any key type that has a legacy implementation, regardless of
|
|
* if the internal key is a legacy or a provider side one. When
|
|
* there is no legacy implementation for the key, the type becomes
|
|
* EVP_PKEY_KEYMGMT, which indicates that one should be cautious
|
|
* with functions that expect legacy internal keys.
|
|
*/
|
|
if (ameth != NULL) {
|
|
if (type == EVP_PKEY_NONE)
|
|
pkey->type = ameth->pkey_id;
|
|
} else {
|
|
pkey->type = EVP_PKEY_KEYMGMT;
|
|
}
|
|
# ifndef OPENSSL_NO_ENGINE
|
|
if (eptr == NULL && e != NULL && !ENGINE_init(e)) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
|
|
return 0;
|
|
}
|
|
# endif
|
|
pkey->engine = e;
|
|
#endif
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
#ifndef FIPS_MODULE
|
|
static void find_ameth(const char *name, void *data)
|
|
{
|
|
const char **str = data;
|
|
|
|
/*
|
|
* The error messages from pkey_set_type() are uninteresting here,
|
|
* and misleading.
|
|
*/
|
|
ERR_set_mark();
|
|
|
|
if (pkey_set_type(NULL, NULL, EVP_PKEY_NONE, name, strlen(name),
|
|
NULL)) {
|
|
if (str[0] == NULL)
|
|
str[0] = name;
|
|
else if (str[1] == NULL)
|
|
str[1] = name;
|
|
}
|
|
|
|
ERR_pop_to_mark();
|
|
}
|
|
#endif
|
|
|
|
int EVP_PKEY_set_type_by_keymgmt(EVP_PKEY *pkey, EVP_KEYMGMT *keymgmt)
|
|
{
|
|
#ifndef FIPS_MODULE
|
|
# define EVP_PKEY_TYPE_STR str[0]
|
|
# define EVP_PKEY_TYPE_STRLEN (str[0] == NULL ? -1 : (int)strlen(str[0]))
|
|
/*
|
|
* Find at most two strings that have an associated EVP_PKEY_ASN1_METHOD
|
|
* Ideally, only one should be found. If two (or more) are found, the
|
|
* match is ambiguous. This should never happen, but...
|
|
*/
|
|
const char *str[2] = { NULL, NULL };
|
|
|
|
if (!EVP_KEYMGMT_names_do_all(keymgmt, find_ameth, &str)
|
|
|| str[1] != NULL) {
|
|
ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);
|
|
return 0;
|
|
}
|
|
#else
|
|
# define EVP_PKEY_TYPE_STR NULL
|
|
# define EVP_PKEY_TYPE_STRLEN -1
|
|
#endif
|
|
return pkey_set_type(pkey, NULL, EVP_PKEY_NONE,
|
|
EVP_PKEY_TYPE_STR, EVP_PKEY_TYPE_STRLEN,
|
|
keymgmt);
|
|
|
|
#undef EVP_PKEY_TYPE_STR
|
|
#undef EVP_PKEY_TYPE_STRLEN
|
|
}
|
|
|
|
int EVP_PKEY_up_ref(EVP_PKEY *pkey)
|
|
{
|
|
int i;
|
|
|
|
if (CRYPTO_UP_REF(&pkey->references, &i) <= 0)
|
|
return 0;
|
|
|
|
REF_PRINT_COUNT("EVP_PKEY", pkey);
|
|
REF_ASSERT_ISNT(i < 2);
|
|
return ((i > 1) ? 1 : 0);
|
|
}
|
|
|
|
#ifndef FIPS_MODULE
|
|
EVP_PKEY *EVP_PKEY_dup(EVP_PKEY *pkey)
|
|
{
|
|
EVP_PKEY *dup_pk;
|
|
|
|
if (pkey == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_NULL_PARAMETER);
|
|
return NULL;
|
|
}
|
|
|
|
if ((dup_pk = EVP_PKEY_new()) == NULL)
|
|
return NULL;
|
|
|
|
if (evp_pkey_is_blank(pkey))
|
|
goto done;
|
|
|
|
if (evp_pkey_is_provided(pkey)) {
|
|
if (!evp_keymgmt_util_copy(dup_pk, pkey,
|
|
OSSL_KEYMGMT_SELECT_ALL))
|
|
goto err;
|
|
goto done;
|
|
}
|
|
|
|
if (evp_pkey_is_legacy(pkey)) {
|
|
const EVP_PKEY_ASN1_METHOD *ameth = pkey->ameth;
|
|
|
|
if (ameth == NULL || ameth->copy == NULL) {
|
|
if (pkey->pkey.ptr == NULL /* empty key, just set type */
|
|
&& EVP_PKEY_set_type(dup_pk, pkey->type) != 0)
|
|
goto done;
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_KEY_TYPE);
|
|
goto err;
|
|
}
|
|
if (!ameth->copy(dup_pk, pkey))
|
|
goto err;
|
|
goto done;
|
|
}
|
|
|
|
goto err;
|
|
done:
|
|
/* copy auxiliary data */
|
|
if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_EVP_PKEY,
|
|
&dup_pk->ex_data, &pkey->ex_data))
|
|
goto err;
|
|
|
|
if (pkey->attributes != NULL) {
|
|
if ((dup_pk->attributes = ossl_x509at_dup(pkey->attributes)) == NULL)
|
|
goto err;
|
|
}
|
|
return dup_pk;
|
|
err:
|
|
EVP_PKEY_free(dup_pk);
|
|
return NULL;
|
|
}
|
|
|
|
void evp_pkey_free_legacy(EVP_PKEY *x)
|
|
{
|
|
const EVP_PKEY_ASN1_METHOD *ameth = x->ameth;
|
|
ENGINE *tmpe = NULL;
|
|
|
|
if (ameth == NULL && x->legacy_cache_pkey.ptr != NULL)
|
|
ameth = EVP_PKEY_asn1_find(&tmpe, x->type);
|
|
|
|
if (ameth != NULL) {
|
|
if (x->legacy_cache_pkey.ptr != NULL) {
|
|
/*
|
|
* We should never have both a legacy origin key, and a key in the
|
|
* legacy cache.
|
|
*/
|
|
assert(x->pkey.ptr == NULL);
|
|
/*
|
|
* For the purposes of freeing we make the legacy cache look like
|
|
* a legacy origin key.
|
|
*/
|
|
x->pkey = x->legacy_cache_pkey;
|
|
x->legacy_cache_pkey.ptr = NULL;
|
|
}
|
|
if (ameth->pkey_free != NULL)
|
|
ameth->pkey_free(x);
|
|
x->pkey.ptr = NULL;
|
|
}
|
|
# ifndef OPENSSL_NO_ENGINE
|
|
ENGINE_finish(tmpe);
|
|
ENGINE_finish(x->engine);
|
|
x->engine = NULL;
|
|
ENGINE_finish(x->pmeth_engine);
|
|
x->pmeth_engine = NULL;
|
|
# endif
|
|
}
|
|
#endif /* FIPS_MODULE */
|
|
|
|
static void evp_pkey_free_it(EVP_PKEY *x)
|
|
{
|
|
/* internal function; x is never NULL */
|
|
evp_keymgmt_util_clear_operation_cache(x);
|
|
#ifndef FIPS_MODULE
|
|
evp_pkey_free_legacy(x);
|
|
#endif
|
|
|
|
if (x->keymgmt != NULL) {
|
|
evp_keymgmt_freedata(x->keymgmt, x->keydata);
|
|
EVP_KEYMGMT_free(x->keymgmt);
|
|
x->keymgmt = NULL;
|
|
x->keydata = NULL;
|
|
}
|
|
x->type = EVP_PKEY_NONE;
|
|
}
|
|
|
|
void EVP_PKEY_free(EVP_PKEY *x)
|
|
{
|
|
int i;
|
|
|
|
if (x == NULL)
|
|
return;
|
|
|
|
CRYPTO_DOWN_REF(&x->references, &i);
|
|
REF_PRINT_COUNT("EVP_PKEY", x);
|
|
if (i > 0)
|
|
return;
|
|
REF_ASSERT_ISNT(i < 0);
|
|
evp_pkey_free_it(x);
|
|
#ifndef FIPS_MODULE
|
|
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, x, &x->ex_data);
|
|
#endif
|
|
CRYPTO_THREAD_lock_free(x->lock);
|
|
CRYPTO_FREE_REF(&x->references);
|
|
#ifndef FIPS_MODULE
|
|
sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);
|
|
#endif
|
|
OPENSSL_free(x);
|
|
}
|
|
|
|
int EVP_PKEY_get_size(const EVP_PKEY *pkey)
|
|
{
|
|
int size = 0;
|
|
|
|
if (pkey != NULL) {
|
|
size = pkey->cache.size;
|
|
#ifndef FIPS_MODULE
|
|
if (pkey->ameth != NULL && pkey->ameth->pkey_size != NULL)
|
|
size = pkey->ameth->pkey_size(pkey);
|
|
#endif
|
|
}
|
|
if (size <= 0) {
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_UNKNOWN_MAX_SIZE);
|
|
return 0;
|
|
}
|
|
return size;
|
|
}
|
|
|
|
const char *EVP_PKEY_get0_description(const EVP_PKEY *pkey)
|
|
{
|
|
if (!evp_pkey_is_assigned(pkey))
|
|
return NULL;
|
|
|
|
if (evp_pkey_is_provided(pkey) && pkey->keymgmt->description != NULL)
|
|
return pkey->keymgmt->description;
|
|
#ifndef FIPS_MODULE
|
|
if (pkey->ameth != NULL)
|
|
return pkey->ameth->info;
|
|
#endif
|
|
return NULL;
|
|
}
|
|
|
|
void *evp_pkey_export_to_provider(EVP_PKEY *pk, OSSL_LIB_CTX *libctx,
|
|
EVP_KEYMGMT **keymgmt,
|
|
const char *propquery)
|
|
{
|
|
EVP_KEYMGMT *allocated_keymgmt = NULL;
|
|
EVP_KEYMGMT *tmp_keymgmt = NULL;
|
|
int selection = OSSL_KEYMGMT_SELECT_ALL;
|
|
void *keydata = NULL;
|
|
int check;
|
|
|
|
if (pk == NULL)
|
|
return NULL;
|
|
|
|
/* No key data => nothing to export */
|
|
check = 1;
|
|
#ifndef FIPS_MODULE
|
|
check = check && pk->pkey.ptr == NULL;
|
|
#endif
|
|
check = check && pk->keydata == NULL;
|
|
if (check)
|
|
return NULL;
|
|
|
|
#ifndef FIPS_MODULE
|
|
if (pk->pkey.ptr != NULL) {
|
|
/*
|
|
* If the legacy key doesn't have an dirty counter or export function,
|
|
* give up
|
|
*/
|
|
if (pk->ameth->dirty_cnt == NULL || pk->ameth->export_to == NULL)
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
if (keymgmt != NULL) {
|
|
tmp_keymgmt = *keymgmt;
|
|
*keymgmt = NULL;
|
|
}
|
|
|
|
/*
|
|
* If no keymgmt was given or found, get a default keymgmt. We do so by
|
|
* letting EVP_PKEY_CTX_new_from_pkey() do it for us, then we steal it.
|
|
*/
|
|
if (tmp_keymgmt == NULL) {
|
|
EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pk, propquery);
|
|
|
|
if (ctx == NULL)
|
|
goto end;
|
|
allocated_keymgmt = tmp_keymgmt = ctx->keymgmt;
|
|
ctx->keymgmt = NULL;
|
|
EVP_PKEY_CTX_free(ctx);
|
|
}
|
|
|
|
/* If there's still no keymgmt to be had, give up */
|
|
if (tmp_keymgmt == NULL)
|
|
goto end;
|
|
|
|
#ifndef FIPS_MODULE
|
|
if (pk->pkey.ptr != NULL) {
|
|
OP_CACHE_ELEM *op;
|
|
|
|
/*
|
|
* If the legacy "origin" hasn't changed since last time, we try
|
|
* to find our keymgmt in the operation cache. If it has changed,
|
|
* |i| remains zero, and we will clear the cache further down.
|
|
*/
|
|
if (pk->ameth->dirty_cnt(pk) == pk->dirty_cnt_copy) {
|
|
if (!CRYPTO_THREAD_read_lock(pk->lock))
|
|
goto end;
|
|
op = evp_keymgmt_util_find_operation_cache(pk, tmp_keymgmt,
|
|
selection);
|
|
|
|
/*
|
|
* If |tmp_keymgmt| is present in the operation cache, it means
|
|
* that export doesn't need to be redone. In that case, we take
|
|
* token copies of the cached pointers, to have token success
|
|
* values to return. It is possible (e.g. in a no-cached-fetch
|
|
* build), for op->keymgmt to be a different pointer to tmp_keymgmt
|
|
* even though the name/provider must be the same. In other words
|
|
* the keymgmt instance may be different but still equivalent, i.e.
|
|
* same algorithm/provider instance - but we make the simplifying
|
|
* assumption that the keydata can be used with either keymgmt
|
|
* instance. Not doing so introduces significant complexity and
|
|
* probably requires refactoring - since we would have to ripple
|
|
* the change in keymgmt instance up the call chain.
|
|
*/
|
|
if (op != NULL && op->keymgmt != NULL) {
|
|
keydata = op->keydata;
|
|
CRYPTO_THREAD_unlock(pk->lock);
|
|
goto end;
|
|
}
|
|
CRYPTO_THREAD_unlock(pk->lock);
|
|
}
|
|
|
|
/* Make sure that the keymgmt key type matches the legacy NID */
|
|
if (!EVP_KEYMGMT_is_a(tmp_keymgmt, OBJ_nid2sn(pk->type)))
|
|
goto end;
|
|
|
|
if ((keydata = evp_keymgmt_newdata(tmp_keymgmt)) == NULL)
|
|
goto end;
|
|
|
|
if (!pk->ameth->export_to(pk, keydata, tmp_keymgmt->import,
|
|
libctx, propquery)) {
|
|
evp_keymgmt_freedata(tmp_keymgmt, keydata);
|
|
keydata = NULL;
|
|
goto end;
|
|
}
|
|
|
|
/*
|
|
* If the dirty counter changed since last time, then clear the
|
|
* operation cache. In that case, we know that |i| is zero. Just
|
|
* in case this is a re-export, we increment then decrement the
|
|
* keymgmt reference counter.
|
|
*/
|
|
if (!EVP_KEYMGMT_up_ref(tmp_keymgmt)) { /* refcnt++ */
|
|
evp_keymgmt_freedata(tmp_keymgmt, keydata);
|
|
keydata = NULL;
|
|
goto end;
|
|
}
|
|
|
|
if (!CRYPTO_THREAD_write_lock(pk->lock))
|
|
goto end;
|
|
if (pk->ameth->dirty_cnt(pk) != pk->dirty_cnt_copy
|
|
&& !evp_keymgmt_util_clear_operation_cache(pk)) {
|
|
CRYPTO_THREAD_unlock(pk->lock);
|
|
evp_keymgmt_freedata(tmp_keymgmt, keydata);
|
|
keydata = NULL;
|
|
EVP_KEYMGMT_free(tmp_keymgmt);
|
|
goto end;
|
|
}
|
|
EVP_KEYMGMT_free(tmp_keymgmt); /* refcnt-- */
|
|
|
|
/* Check to make sure some other thread didn't get there first */
|
|
op = evp_keymgmt_util_find_operation_cache(pk, tmp_keymgmt, selection);
|
|
if (op != NULL && op->keymgmt != NULL) {
|
|
void *tmp_keydata = op->keydata;
|
|
|
|
CRYPTO_THREAD_unlock(pk->lock);
|
|
evp_keymgmt_freedata(tmp_keymgmt, keydata);
|
|
keydata = tmp_keydata;
|
|
goto end;
|
|
}
|
|
|
|
/* Add the new export to the operation cache */
|
|
if (!evp_keymgmt_util_cache_keydata(pk, tmp_keymgmt, keydata,
|
|
selection)) {
|
|
CRYPTO_THREAD_unlock(pk->lock);
|
|
evp_keymgmt_freedata(tmp_keymgmt, keydata);
|
|
keydata = NULL;
|
|
goto end;
|
|
}
|
|
|
|
/* Synchronize the dirty count */
|
|
pk->dirty_cnt_copy = pk->ameth->dirty_cnt(pk);
|
|
|
|
CRYPTO_THREAD_unlock(pk->lock);
|
|
goto end;
|
|
}
|
|
#endif /* FIPS_MODULE */
|
|
|
|
keydata = evp_keymgmt_util_export_to_provider(pk, tmp_keymgmt, selection);
|
|
|
|
end:
|
|
/*
|
|
* If nothing was exported, |tmp_keymgmt| might point at a freed
|
|
* EVP_KEYMGMT, so we clear it to be safe. It shouldn't be useful for
|
|
* the caller either way in that case.
|
|
*/
|
|
if (keydata == NULL)
|
|
tmp_keymgmt = NULL;
|
|
|
|
if (keymgmt != NULL && tmp_keymgmt != NULL) {
|
|
*keymgmt = tmp_keymgmt;
|
|
allocated_keymgmt = NULL;
|
|
}
|
|
|
|
EVP_KEYMGMT_free(allocated_keymgmt);
|
|
return keydata;
|
|
}
|
|
|
|
#ifndef FIPS_MODULE
|
|
int evp_pkey_copy_downgraded(EVP_PKEY **dest, const EVP_PKEY *src)
|
|
{
|
|
EVP_PKEY *allocpkey = NULL;
|
|
|
|
if (!ossl_assert(dest != NULL))
|
|
return 0;
|
|
|
|
if (evp_pkey_is_assigned(src) && evp_pkey_is_provided(src)) {
|
|
EVP_KEYMGMT *keymgmt = src->keymgmt;
|
|
void *keydata = src->keydata;
|
|
int type = src->type;
|
|
const char *keytype = NULL;
|
|
|
|
keytype = EVP_KEYMGMT_get0_name(keymgmt);
|
|
|
|
/*
|
|
* If the type is EVP_PKEY_NONE, then we have a problem somewhere
|
|
* else in our code. If it's not one of the well known EVP_PKEY_xxx
|
|
* values, it should at least be EVP_PKEY_KEYMGMT at this point.
|
|
* The check is kept as a safety measure.
|
|
*/
|
|
if (!ossl_assert(type != EVP_PKEY_NONE)) {
|
|
ERR_raise_data(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR,
|
|
"keymgmt key type = %s but legacy type = EVP_PKEY_NONE",
|
|
keytype);
|
|
return 0;
|
|
}
|
|
|
|
/* Prefer the legacy key type name for error reporting */
|
|
if (type != EVP_PKEY_KEYMGMT)
|
|
keytype = OBJ_nid2sn(type);
|
|
|
|
/* Make sure we have a clean slate to copy into */
|
|
if (*dest == NULL) {
|
|
allocpkey = *dest = EVP_PKEY_new();
|
|
if (*dest == NULL) {
|
|
ERR_raise(ERR_LIB_EVP, ERR_R_EVP_LIB);
|
|
return 0;
|
|
}
|
|
} else {
|
|
evp_pkey_free_it(*dest);
|
|
}
|
|
|
|
if (EVP_PKEY_set_type(*dest, type)) {
|
|
/* If the key is typed but empty, we're done */
|
|
if (keydata == NULL)
|
|
return 1;
|
|
|
|
if ((*dest)->ameth->import_from == NULL) {
|
|
ERR_raise_data(ERR_LIB_EVP, EVP_R_NO_IMPORT_FUNCTION,
|
|
"key type = %s", keytype);
|
|
} else {
|
|
/*
|
|
* We perform the export in the same libctx as the keymgmt
|
|
* that we are using.
|
|
*/
|
|
OSSL_LIB_CTX *libctx =
|
|
ossl_provider_libctx(keymgmt->prov);
|
|
EVP_PKEY_CTX *pctx =
|
|
EVP_PKEY_CTX_new_from_pkey(libctx, *dest, NULL);
|
|
|
|
if (pctx == NULL)
|
|
ERR_raise(ERR_LIB_EVP, ERR_R_EVP_LIB);
|
|
|
|
if (pctx != NULL
|
|
&& evp_keymgmt_export(keymgmt, keydata,
|
|
OSSL_KEYMGMT_SELECT_ALL,
|
|
(*dest)->ameth->import_from,
|
|
pctx)) {
|
|
/* Synchronize the dirty count */
|
|
(*dest)->dirty_cnt_copy = (*dest)->ameth->dirty_cnt(*dest);
|
|
|
|
EVP_PKEY_CTX_free(pctx);
|
|
return 1;
|
|
}
|
|
EVP_PKEY_CTX_free(pctx);
|
|
}
|
|
|
|
ERR_raise_data(ERR_LIB_EVP, EVP_R_KEYMGMT_EXPORT_FAILURE,
|
|
"key type = %s", keytype);
|
|
}
|
|
}
|
|
|
|
if (allocpkey != NULL) {
|
|
EVP_PKEY_free(allocpkey);
|
|
*dest = NULL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void *evp_pkey_get_legacy(EVP_PKEY *pk)
|
|
{
|
|
EVP_PKEY *tmp_copy = NULL;
|
|
void *ret = NULL;
|
|
|
|
if (!ossl_assert(pk != NULL))
|
|
return NULL;
|
|
|
|
/*
|
|
* If this isn't an assigned provider side key, we just use any existing
|
|
* origin legacy key.
|
|
*/
|
|
if (!evp_pkey_is_assigned(pk))
|
|
return NULL;
|
|
if (!evp_pkey_is_provided(pk))
|
|
return pk->pkey.ptr;
|
|
|
|
if (!CRYPTO_THREAD_read_lock(pk->lock))
|
|
return NULL;
|
|
|
|
ret = pk->legacy_cache_pkey.ptr;
|
|
|
|
if (!CRYPTO_THREAD_unlock(pk->lock))
|
|
return NULL;
|
|
|
|
if (ret != NULL)
|
|
return ret;
|
|
|
|
if (!evp_pkey_copy_downgraded(&tmp_copy, pk))
|
|
goto err;
|
|
|
|
if (!CRYPTO_THREAD_write_lock(pk->lock))
|
|
goto err;
|
|
|
|
/* Check again in case some other thread has updated it in the meantime */
|
|
ret = pk->legacy_cache_pkey.ptr;
|
|
if (ret == NULL) {
|
|
/* Steal the legacy key reference from the temporary copy */
|
|
ret = pk->legacy_cache_pkey.ptr = tmp_copy->pkey.ptr;
|
|
tmp_copy->pkey.ptr = NULL;
|
|
}
|
|
|
|
if (!CRYPTO_THREAD_unlock(pk->lock)) {
|
|
ret = NULL;
|
|
goto err;
|
|
}
|
|
|
|
err:
|
|
EVP_PKEY_free(tmp_copy);
|
|
|
|
return ret;
|
|
}
|
|
#endif /* FIPS_MODULE */
|
|
|
|
int EVP_PKEY_get_bn_param(const EVP_PKEY *pkey, const char *key_name,
|
|
BIGNUM **bn)
|
|
{
|
|
int ret = 0;
|
|
OSSL_PARAM params[2];
|
|
unsigned char buffer[2048];
|
|
unsigned char *buf = NULL;
|
|
size_t buf_sz = 0;
|
|
|
|
if (key_name == NULL
|
|
|| bn == NULL)
|
|
return 0;
|
|
|
|
memset(buffer, 0, sizeof(buffer));
|
|
params[0] = OSSL_PARAM_construct_BN(key_name, buffer, sizeof(buffer));
|
|
params[1] = OSSL_PARAM_construct_end();
|
|
if (!EVP_PKEY_get_params(pkey, params)) {
|
|
if (!OSSL_PARAM_modified(params) || params[0].return_size == 0)
|
|
return 0;
|
|
buf_sz = params[0].return_size;
|
|
/*
|
|
* If it failed because the buffer was too small then allocate the
|
|
* required buffer size and retry.
|
|
*/
|
|
buf = OPENSSL_zalloc(buf_sz);
|
|
if (buf == NULL)
|
|
return 0;
|
|
params[0].data = buf;
|
|
params[0].data_size = buf_sz;
|
|
|
|
if (!EVP_PKEY_get_params(pkey, params))
|
|
goto err;
|
|
}
|
|
/* Fail if the param was not found */
|
|
if (!OSSL_PARAM_modified(params))
|
|
goto err;
|
|
ret = OSSL_PARAM_get_BN(params, bn);
|
|
err:
|
|
if (buf != NULL) {
|
|
if (OSSL_PARAM_modified(params))
|
|
OPENSSL_clear_free(buf, buf_sz);
|
|
else
|
|
OPENSSL_free(buf);
|
|
} else if (OSSL_PARAM_modified(params)) {
|
|
OPENSSL_cleanse(buffer, params[0].data_size);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int EVP_PKEY_get_octet_string_param(const EVP_PKEY *pkey, const char *key_name,
|
|
unsigned char *buf, size_t max_buf_sz,
|
|
size_t *out_len)
|
|
{
|
|
OSSL_PARAM params[2];
|
|
int ret1 = 0, ret2 = 0;
|
|
|
|
if (key_name == NULL)
|
|
return 0;
|
|
|
|
params[0] = OSSL_PARAM_construct_octet_string(key_name, buf, max_buf_sz);
|
|
params[1] = OSSL_PARAM_construct_end();
|
|
if ((ret1 = EVP_PKEY_get_params(pkey, params)))
|
|
ret2 = OSSL_PARAM_modified(params);
|
|
if (ret2 && out_len != NULL)
|
|
*out_len = params[0].return_size;
|
|
return ret1 && ret2;
|
|
}
|
|
|
|
int EVP_PKEY_get_utf8_string_param(const EVP_PKEY *pkey, const char *key_name,
|
|
char *str, size_t max_buf_sz,
|
|
size_t *out_len)
|
|
{
|
|
OSSL_PARAM params[2];
|
|
int ret1 = 0, ret2 = 0;
|
|
|
|
if (key_name == NULL)
|
|
return 0;
|
|
|
|
params[0] = OSSL_PARAM_construct_utf8_string(key_name, str, max_buf_sz);
|
|
params[1] = OSSL_PARAM_construct_end();
|
|
if ((ret1 = EVP_PKEY_get_params(pkey, params)))
|
|
ret2 = OSSL_PARAM_modified(params);
|
|
if (ret2 && out_len != NULL)
|
|
*out_len = params[0].return_size;
|
|
|
|
if (ret2 && params[0].return_size == max_buf_sz)
|
|
/* There was no space for a NUL byte */
|
|
return 0;
|
|
/* Add a terminating NUL byte for good measure */
|
|
if (ret2 && str != NULL)
|
|
str[params[0].return_size] = '\0';
|
|
|
|
return ret1 && ret2;
|
|
}
|
|
|
|
int EVP_PKEY_get_int_param(const EVP_PKEY *pkey, const char *key_name,
|
|
int *out)
|
|
{
|
|
OSSL_PARAM params[2];
|
|
|
|
if (key_name == NULL)
|
|
return 0;
|
|
|
|
params[0] = OSSL_PARAM_construct_int(key_name, out);
|
|
params[1] = OSSL_PARAM_construct_end();
|
|
return EVP_PKEY_get_params(pkey, params)
|
|
&& OSSL_PARAM_modified(params);
|
|
}
|
|
|
|
int EVP_PKEY_get_size_t_param(const EVP_PKEY *pkey, const char *key_name,
|
|
size_t *out)
|
|
{
|
|
OSSL_PARAM params[2];
|
|
|
|
if (key_name == NULL)
|
|
return 0;
|
|
|
|
params[0] = OSSL_PARAM_construct_size_t(key_name, out);
|
|
params[1] = OSSL_PARAM_construct_end();
|
|
return EVP_PKEY_get_params(pkey, params)
|
|
&& OSSL_PARAM_modified(params);
|
|
}
|
|
|
|
int EVP_PKEY_set_int_param(EVP_PKEY *pkey, const char *key_name, int in)
|
|
{
|
|
OSSL_PARAM params[2];
|
|
|
|
if (key_name == NULL)
|
|
return 0;
|
|
|
|
params[0] = OSSL_PARAM_construct_int(key_name, &in);
|
|
params[1] = OSSL_PARAM_construct_end();
|
|
return EVP_PKEY_set_params(pkey, params);
|
|
}
|
|
|
|
int EVP_PKEY_set_size_t_param(EVP_PKEY *pkey, const char *key_name, size_t in)
|
|
{
|
|
OSSL_PARAM params[2];
|
|
|
|
if (key_name == NULL)
|
|
return 0;
|
|
|
|
params[0] = OSSL_PARAM_construct_size_t(key_name, &in);
|
|
params[1] = OSSL_PARAM_construct_end();
|
|
return EVP_PKEY_set_params(pkey, params);
|
|
}
|
|
|
|
int EVP_PKEY_set_bn_param(EVP_PKEY *pkey, const char *key_name,
|
|
const BIGNUM *bn)
|
|
{
|
|
OSSL_PARAM params[2];
|
|
unsigned char buffer[2048];
|
|
int bsize = 0;
|
|
|
|
if (key_name == NULL
|
|
|| bn == NULL
|
|
|| pkey == NULL
|
|
|| !evp_pkey_is_assigned(pkey))
|
|
return 0;
|
|
|
|
bsize = BN_num_bytes(bn);
|
|
if (!ossl_assert(bsize <= (int)sizeof(buffer)))
|
|
return 0;
|
|
|
|
if (BN_bn2nativepad(bn, buffer, bsize) < 0)
|
|
return 0;
|
|
params[0] = OSSL_PARAM_construct_BN(key_name, buffer, bsize);
|
|
params[1] = OSSL_PARAM_construct_end();
|
|
return EVP_PKEY_set_params(pkey, params);
|
|
}
|
|
|
|
int EVP_PKEY_set_utf8_string_param(EVP_PKEY *pkey, const char *key_name,
|
|
const char *str)
|
|
{
|
|
OSSL_PARAM params[2];
|
|
|
|
if (key_name == NULL)
|
|
return 0;
|
|
|
|
params[0] = OSSL_PARAM_construct_utf8_string(key_name, (char *)str, 0);
|
|
params[1] = OSSL_PARAM_construct_end();
|
|
return EVP_PKEY_set_params(pkey, params);
|
|
}
|
|
|
|
int EVP_PKEY_set_octet_string_param(EVP_PKEY *pkey, const char *key_name,
|
|
const unsigned char *buf, size_t bsize)
|
|
{
|
|
OSSL_PARAM params[2];
|
|
|
|
if (key_name == NULL)
|
|
return 0;
|
|
|
|
params[0] = OSSL_PARAM_construct_octet_string(key_name,
|
|
(unsigned char *)buf, bsize);
|
|
params[1] = OSSL_PARAM_construct_end();
|
|
return EVP_PKEY_set_params(pkey, params);
|
|
}
|
|
|
|
const OSSL_PARAM *EVP_PKEY_settable_params(const EVP_PKEY *pkey)
|
|
{
|
|
return (pkey != NULL && evp_pkey_is_provided(pkey))
|
|
? EVP_KEYMGMT_settable_params(pkey->keymgmt)
|
|
: NULL;
|
|
}
|
|
|
|
int EVP_PKEY_set_params(EVP_PKEY *pkey, OSSL_PARAM params[])
|
|
{
|
|
if (pkey != NULL) {
|
|
if (evp_pkey_is_provided(pkey)) {
|
|
pkey->dirty_cnt++;
|
|
return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params);
|
|
}
|
|
#ifndef FIPS_MODULE
|
|
/*
|
|
* We will hopefully never find the need to set individual data in
|
|
* EVP_PKEYs with a legacy internal key, but we can't be entirely
|
|
* sure. This bit of code can be enabled if we find the need. If
|
|
* not, it can safely be removed when #legacy support is removed.
|
|
*/
|
|
# if 0
|
|
else if (evp_pkey_is_legacy(pkey)) {
|
|
return evp_pkey_set_params_to_ctrl(pkey, params);
|
|
}
|
|
# endif
|
|
#endif
|
|
}
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_KEY);
|
|
return 0;
|
|
}
|
|
|
|
const OSSL_PARAM *EVP_PKEY_gettable_params(const EVP_PKEY *pkey)
|
|
{
|
|
return (pkey != NULL && evp_pkey_is_provided(pkey))
|
|
? EVP_KEYMGMT_gettable_params(pkey->keymgmt)
|
|
: NULL;
|
|
}
|
|
|
|
int EVP_PKEY_get_params(const EVP_PKEY *pkey, OSSL_PARAM params[])
|
|
{
|
|
if (pkey != NULL) {
|
|
if (evp_pkey_is_provided(pkey))
|
|
return evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) > 0;
|
|
#ifndef FIPS_MODULE
|
|
else if (evp_pkey_is_legacy(pkey))
|
|
return evp_pkey_get_params_to_ctrl(pkey, params) > 0;
|
|
#endif
|
|
}
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_KEY);
|
|
return 0;
|
|
}
|
|
|
|
#ifndef FIPS_MODULE
|
|
int EVP_PKEY_get_ec_point_conv_form(const EVP_PKEY *pkey)
|
|
{
|
|
char name[80];
|
|
size_t name_len;
|
|
|
|
if (pkey == NULL)
|
|
return 0;
|
|
|
|
if (pkey->keymgmt == NULL
|
|
|| pkey->keydata == NULL) {
|
|
# ifndef OPENSSL_NO_EC
|
|
/* Might work through the legacy route */
|
|
const EC_KEY *ec = EVP_PKEY_get0_EC_KEY(pkey);
|
|
|
|
if (ec == NULL)
|
|
return 0;
|
|
|
|
return EC_KEY_get_conv_form(ec);
|
|
# else
|
|
return 0;
|
|
# endif
|
|
}
|
|
|
|
if (!EVP_PKEY_get_utf8_string_param(pkey,
|
|
OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
|
|
name, sizeof(name), &name_len))
|
|
return 0;
|
|
|
|
if (strcmp(name, "uncompressed") == 0)
|
|
return POINT_CONVERSION_UNCOMPRESSED;
|
|
|
|
if (strcmp(name, "compressed") == 0)
|
|
return POINT_CONVERSION_COMPRESSED;
|
|
|
|
if (strcmp(name, "hybrid") == 0)
|
|
return POINT_CONVERSION_HYBRID;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int EVP_PKEY_get_field_type(const EVP_PKEY *pkey)
|
|
{
|
|
char fstr[80];
|
|
size_t fstrlen;
|
|
|
|
if (pkey == NULL)
|
|
return 0;
|
|
|
|
if (pkey->keymgmt == NULL
|
|
|| pkey->keydata == NULL) {
|
|
# ifndef OPENSSL_NO_EC
|
|
/* Might work through the legacy route */
|
|
const EC_KEY *ec = EVP_PKEY_get0_EC_KEY(pkey);
|
|
const EC_GROUP *grp;
|
|
|
|
if (ec == NULL)
|
|
return 0;
|
|
grp = EC_KEY_get0_group(ec);
|
|
if (grp == NULL)
|
|
return 0;
|
|
|
|
return EC_GROUP_get_field_type(grp);
|
|
# else
|
|
return 0;
|
|
# endif
|
|
}
|
|
|
|
if (!EVP_PKEY_get_utf8_string_param(pkey, OSSL_PKEY_PARAM_EC_FIELD_TYPE,
|
|
fstr, sizeof(fstr), &fstrlen))
|
|
return 0;
|
|
|
|
if (strcmp(fstr, SN_X9_62_prime_field) == 0)
|
|
return NID_X9_62_prime_field;
|
|
else if (strcmp(fstr, SN_X9_62_characteristic_two_field))
|
|
return NID_X9_62_characteristic_two_field;
|
|
|
|
return 0;
|
|
}
|
|
#endif
|